`threading.Lock` is now the underlying class and is constructable rather than the old
factory function. This allows for type annotations to refer to it which had no non-ugly
way to be expressed prior to this.
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
* use the ParkingLot API to manage waiting threads
* use Argument Clinic's critical section directive to protect queue methods
* remove unnecessary overflow check
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
Use a ring buffer instead of a Python list in order to simplify the
process of making queue.SimpleQueue thread-safe in free-threaded
builds. The ring buffer implementation has no places where critical
sections may be released.
Only set filename to cwd if it was caused by failed chdir(cwd).
_fork_exec() now returns "noexec:chdir" for failed chdir(cwd).
Co-authored-by: Robert O'Shea <PurityLake@users.noreply.github.com>
This comment appears to have been mistakenly copied from what is now
called iobase_check_closed() in commit 4d9aec0220.
Also unite the iobase_check_closed() code with the relevant comment.
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
If *trackfd* is False, the file descriptor specified by *fileno*
will not be duplicated.
Co-authored-by: Erlend E. Aasland <erlend@python.org>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
On Windows, set _O_NOINHERIT flag on file descriptors
created by os.pipe() and io.WindowsConsoleIO.
Add test_pipe_spawnl() to test_os.
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
Previously the C implementation of pickle.Pickler and pickle.Unpickler
classes did not have such methods and they could only be used if
they were overloaded in subclasses or set as instance attributes.
Fixed calling super().persistent_id() and super().persistent_load() in
subclasses of the C implementation of pickle.Pickler and pickle.Unpickler
classes. It no longer causes an infinite recursion.
When an `StopIteration` raises into `asyncio.Future`, this will cause
a thread to hang. This commit address this by not raising an exception
and silently transforming the `StopIteration` with a `RuntimeError`,
which the caller can reconstruct from `fut.exception().__cause__`
Remove LibreSSL specific workaround ifdefs from `_ssl.c` and delete the non-version-specific `_ssl_data.h` file (relevant for OpenSSL < 1.1.1, which we no longer support per PEP 644).
Co-authored-by: Christian Heimes <christian@python.org>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
gh-113750: Fix object resurrection on free-threaded builds
This avoids the undesired re-initializing of fields like `ob_gc_bits`,
`ob_mutex`, and `ob_tid` when an object is resurrected due to its
finalizer being called.
This change has no effect on the default (with GIL) build.
This splits part of Modules/gcmodule.c of into Python/gc.c, which
now contains the core garbage collection implementation. The Python
module remain in the Modules/gcmodule.c file.
* gh-113536: Expose `os.waitid` on macOS
This API has been available on macOS for a long time, but was
explicitly excluded due to unspecified problems with the API
in ancient versions of macOS.
* Document that the API is available on macOS starting in Python 3.13
The length field of StgDictObject for Structure class contains now
the total number of items in ffi_type_pointer.elements (excluding
the trailing null).
The old behavior of using the number of elements in the parent class can
cause the array to be truncated when it is copied, especially when there
are multiple layers of subclassing.
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Steve Dower
Erlend E. Aasland
Michael Droettboom
Nikita Sobolev
Serhiy Storchaka
mpage
neonene
Skip Montanaro
AN Long
Radislav Chugunov
Jonathon Reinhart
Zackery Spytz
Ronald Oussoren
Peter Lazorchak
Victor Stinner
Jamie Phan
Pablo Galindo Salgado
Rami
Sam Gross
Christopher Chavez
Neil Schemenauer
Jeffrey Kintscher
Kirill Podoprigora